The bottle from the bottle washing machine from the bottle into the filling machine into the bottle screw, the bottle by the star wheel to the rotary table on the cylinder and raise the cylinder. The bottle is pressed under the guide of the centering device to press the bottom of the filling valve to form a seal. After the bottle is evacuated, the back pressure gas (CO2,) in the tank is flushed into the bottle. When the gas pressure in the bottle is equal to the gas pressure in the tank, the liquid valve is opened under the action of the liquid valve spring The At this point the beer through the return pipe on the umbrella-type reflective ring guide role. Automatically poured into the glass bottle along the bottle, the glass of CO2, through the return pipe is replaced back into the storage tank. When the wine rises to a certain height and the return air nozzle is closed. Automatically stop the wine. And then the liquid valve and valve closed, drain the bottleneck of the pressure of the gas to prevent the gas in the glass bottle when the spewing down, so that the completion of the entire filling process.